Dictionary » P » Photons

Photons

photons

discrete concentrations of energy, apparently massless elementary particles, that move at the speed of light. They are the unit or quantum of electromagnetic radiation. Photons are emitted when electrons move from one energy state to another.


Please contribute to this project, if you have more information about this term feel free to edit this page



Results from our forum


Re:

... reactions succeeding it. 'Reaction' being any event that happens because of the laws of nature (a physical, chemical or biological interaction of photons, electrons, atoms, or molecules and such). You appear to be talking about laws of science , philosophers distinguish these from laws of nature ...

See entire post
by ughaibu
Thu Oct 24, 2013 8:57 am
 
Forum: Cell Biology
Topic: Do We Have The Freedom Of Choice?
Replies: 27
Views: 28877

Re: Is complexity inevitable?

... we're certain of indeterminacy, or if indeterminacy is merely what is suggested by the apparent randomness of small particles like electrons (and photons :?: ). But back to biology . Have you considered that the human niche is actually a collection of niches? Most organisms cannot change their ...

See entire post
by wildfunguy
Fri Oct 18, 2013 1:55 am
 
Forum: Evolution
Topic: Is complexity inevitable?
Replies: 16
Views: 10690

Re: Resonance transfer

... energy to another energy-accepting structure is a characteristic of fluorescent compounds and without that characteristic, they would simply emit photons of the same energy as the photons that that excited them. The interesting thing about fluorescent compounds is this ability to peel off some ...

See entire post
by jonmoulton
Fri Jun 07, 2013 3:20 pm
 
Forum: General Discussion
Topic: Resonance transfer
Replies: 1
Views: 1265

Do We Have The Freedom Of Choice?

... reactions succeeding it. 'Reaction' being any event that happens because of the laws of nature (a physical, chemical or biological interaction of photons, electrons, atoms, or molecules and such). From this kind of 'natural determinism' I was deriving the doubts of the existence of free will, ...

See entire post
by biohazard
Fri Apr 19, 2013 8:36 am
 
Forum: Cell Biology
Topic: Do We Have The Freedom Of Choice?
Replies: 27
Views: 28877

Re: Spectrophotometry - why can't some products be read?

The structure of a molecule determines what energies of electromagnatic radiation it will absorb. Lower-energy photons like microwaves correspond to changes like transitions in rotational energies about bonds, while higher-energy photons can trigger rearrangements in electron ...

See entire post
by jonmoulton
Thu Nov 01, 2012 4:13 pm
 
Forum: Molecular Biology
Topic: Spectrophotometry - why can't some products be read?
Replies: 2
Views: 2826
View all matching forum results

This page was last modified 21:16, 3 October 2005. This page has been accessed 10,238 times. 
What links here | Related changes | Permanent link